Calculating-machine.



'PATENTBD JUNE 11, 1907.

L. G. IULHN.

GALGU LATNG MACHINE.

APPLJIOATION FILED OGT.7, 1904.

13 SHEETS-SHEET l.

. ooo ooococ AHH.:

www..

fltbomwgi Omga-mf L. G. JULIHN. GALUULATNG MACHINE.

APPLICATION FILED O0T.7, 1904.

PATENTED JUNE l1, 1907.

y13 SHEETS-SHEET 2,

y No. 856,349. l PATBNTBD JUNE 11, 1907.

' L. G. JULIHN.

GALGULATING MACHINE.

APPLICATION FILED 00T. 7, 1904.

13 SHEETS-SHEET 3` Loads Ju/b/Lmf 54m-vento@ WW1/mow@ PATENTED JUNE ll,1907.

L. G. JULIEN. GALGULATING MACHINE.

APPLIOATION FILED 00T.7, 1904.

13 SHEETS-SHEET 4.

No. 856,349. PATENTED JUNE 11, 1907. L. G. JULIEN. GALGULATING MACHINE.

APPLICATION FILED 0012.7, 1904.

13 SHEETS-SHEET 5.

funun"11111111111111111111 l l' l- WIIIHHHIHIIIHI No. 856,349. PATENTEDJUNE ll, 1907. L. G. JULIEN.

GALGULATNG MACHINE.

APPLIOATION FILED 00T.7,19o4.

1s SHEETS-SHEET e.

.guia ww J M A www @Si mmmmm mm mw L. G. JULIEN.

13 SHEETS-SHEET 7.

www

PATENTED JUNE'll, 1907.

PATENTED JUNE 1l, 1907.

L. G. JULIEN.

GALGULATING MAGHNE.

APPLICATION FILED 00T. 7, 1904.

13 SHEETS-SHBET 8.

awww

O. 996,949. PATENTES JUNE 11, 1907.

G. JULIEN.

GALGULATING MACHINE.

APPLIOATIGN FILED 00917, 1904.

13 SHEETS-SHEET 9.

11g/JZ.

No. 856,349. PATENTBD JUNE ll, 1907.

L. Gr. JULHN.

YCALGULAIHIG MACHINE.

APPLICATION FILED O0T.7,1904.

13 SHEETS-SHEET 10 PATENTED JUNE 11, 1907.

L. G. JULIEN.

GALCULATING MACHINE.

APPLICATION FILED 00T.7,1904.

13 SHEETS-SHEET 11V Loza/SG Jldznf;

@XH/Mmmm PATENTED JUNE 11, l90'7.

v No. 856,349.

L. Gr. JULIEN.' GALGULATNG MACHINE.

AIPLIGATION FILED 00T. 7, 1904.

13 SHEETS-SHEET l 2.

1 WVM/www PATENTED JUNE l1, 1907.

PPLIGATION FILE 1 4.

D om: 7 90 1s SHEETS-SHEET' 13.

l www0/oom and to cause the keys UNITED STATES PATENT OFFICE,.-

LOUIS G. JULIHN, OFV WASHINGTON, DISTRICT OF COLUMBIA, ASSIGN OR TO iELLIOTT-FISHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF'- DELAWARE.

cALouLATmG-M'ACHINE.

- Specication of Lettersl Patent.

. Patented June 11, 1907.

Application inea' omi" 7, 190i.- serial No. 227.671.

T0 (f1/ZZ whom it may concern: p

Be it known that I, LOUIS G. JULIHN, a citizen of the United States,residing at Washington, in the District of Columbia,

5 have invented a new and useful Calculatinv- Machine, of which thefollowing is a speci cation.

This invention relates to a calculating machine, but more. particularlyto a combined recording, calculating and registering machine adapted toprint numbers, to effect a computation embracing the values re relsented thereby, and to register the resu t of the computation. u In amore specific aspect, the invention relates to a combined calculatingand typewriting machine, embodying a platen and key operated printingmechanism, relatively movable for letter and line spacing.

In the illustrated embodiment of the invention, the machineincludes inits organization a flat platen or book typewriter characterized by amovable carriage su porting the printing mechanism and, keys, w chlatter operate the printing mechanism and the computing devicesimultaneously, and con ism upon a movable'carriage in order "to,

avoid the accurate'adjnstments necessitated and its operatingmechanismupon `different supports which arerelativel mo.vable. l 3p Toprovide printing 'mechamsm and a computing device coperatively related.and mov-- able in unison rpposite the sheet to be lprintoA permit thecomputing de-A. vice and its operating keyslto travel uni son and tohave their denominational rela.-

. tion changed by such travel. 5. T o mount .5o.

the computing. v.device and key-operatedprinting .mechanismuriage.,.which. is contro led v by'v the l'keys to e'ectidenominationalspacing fof the digits To provide a computing :machine with by themounting of` the 'computing devicetypewriti on a traveling cartobefoper,

vide a typewriter with a computing device, endently of and with meansmounted Aindep the typewriter carriage for causing the computing deviceto be rendered operative at any desired point in the travel of thecarriage,

laccording to-the location ofthe numbers on the work sheet. 9. Toprovide a typewriting machine with a computing device and with columnselective means adjustable on the frame of the typewriter to determinethe location of the adding iieldv or that portion or period of thecarriage travel during which the vcomputing device may be operated- 10.device and printing mechanism mounted to trave in unison over a'iworksheet, and combined Vith means for automatically establishing anoperative relation between the rinting mechanism and the computingdevice at any desired point in the travel thereof. 11. To provideatypewriter with a computin device and with column selective means ordetermining the location of the column to be -totalized, anddenominational selective means for determining the denomination of a diit to'be printed and the denominational re ation of the computing deviceand its operating mechanism. .12. To provide a typewritin acomputingdevice and wit tabulating mechanism -including a column stop with whichis adjustable a devicefor rendering the computing device operative,.whereby the-adjustment of the column stop 'serves to determine thelocation of a column .on'the work sheet and to insure the operationdevice during the printing 13. To provide a `of the com u t of digitsinpsudlig column.

machine with 'one or more column totalizers-and witha grand totalizer,one or more of said totalizers'bei rendering said- .totalizers oerativevat' the proper point or xpoints in t e 'travelof the carriage,

mounted. 'on the typewriter carriage. v14. .o` mount a Apluralityof`computing devices on a type..

Writer carri e and to `provide, means for' Ibo - the'oolumn sto Variousobjects, ready enumerated, will a pear during the succeeding descriptionof t e illustrated'constructions.

In the accompanying is a plan view of a with my invention. igl. 2 is avertical sectional view of vthe same subject-matter. Fig. 3 is ahorizontal section through the carriage casing to disclose the interiorconstruction, a ortion only of which is shown. Fig. 4 is tongitudinalsectional view-designed more particularly to show the masterwheel advancing mechanism and the lcam for relieving the keys whentheprinting point of the machine moves out of va column. Fig. 5 is afront elevation of a portion 'of a carriage, showing the relat'on of thetabulating mechanism with respect to the trip and trigger of themechanism controlling the operative relation between. the master Wheeland the computing device. Fig. 6 is `a detail plan view more-or lessdiagrammatic incharacter, and `showing the *relation of the trigger andtri when `the printing point of the Itypewriter 'reaches Ia position twoste s to the left ofthe column to be totalized ig. 7 is a similar viewillustrating the manner' in which the clutch members are thrown lintoengagement'as the printing'point 'advances to a position one'ste'p orletter space removed from a column. Fig. 8 is still another view ofythis general character 'showing xhow, when the carriagelis arrestedwith its rintingpoint opposite the 4millions o'rder oft e column b theengagement of the vvariable catch Wit the master Wheel will be inengagement wi h the number wheel or digit carrier of'h'ig'hest order,and how, when this relation of the parts is established, 'the masterwheel vadvancing mechanism will -be retained in operative connectionwith the carriage feed spindle 'to insure lthe advance of the masterwheel vvto successive number Wheels as the printing point of thecarriage advances from order to o'rder of thecolumn. Fig. 9 is a detailsection-on theline 9-9 'of Fig. 6, the variable catch "beingshown'retracted. Fig. 10is'a similar view'on the line 10-10 of Figf7.Fig. l11 is a section-al view of the rearside of the carriage casingshowing the mounting of certain elements of the master wheel'adva'ncingmechanism and the-'relation of the relief cam to the master 'wheeloperating connections. Fig. 12 isa sectional v'fiew similar to Fig. 4,but showing the c arriage equipped witha plurality of-computlng devicesor totalizers, one of which may be utilized as a columntotali'z'er-andthe other as a grand computing device. Fig. v13 'is atransverse sectional view similar to Fig. 2, but disclosing thedurlication of clutches, triggers, 'and master w eel f'advancing'racksnecessitated by the employment of the-two in addition to 'those al- Idrawings, Figure 1' portion of an Elliott- Fisher typewriter eqpipped 1naccordancel abovt Awhich are exposed the computing `devices shown inFig. 12. Fig.

14'is a sectional plan view similar to Fig. 3, but showing the duplicatearrangement. Fig. 15 is a front elevation similar to Fig. 5 with thetrips arranged in a manner to con. stitute one of thecomputing devicesas a column computing devlce for totalizing a single column and theother as a grand computing device for computing the grand total of aplurality of columns, including the column totalized by the computingdevice first named. Fig. 16 is a 1plan view ofthe subjectmatter of Fig.15. ig. 17 is a section on the line 17-17 of Fig. 16. Fig. 18 is a rearelevation of the column stop bar shown in Fig; 15. Figs. 19, 20, 'and 21are detail perspective views of the combined trips and column stops.Fig.`22 is a detail section through the `master Wheel shaft andassociated parts.

Fig. 23 is a detail view, illustrating the hinged outer end of thetrigger for the grand computing device, and Fi 24 is a front elevationof a complete E liott-Fisher typewriter equipped in accordance with my1nvention.

The'same 'reference character is a plied to the corresponding partthroughout t eviews.

The present `invention embodies several features believed to be broadlynovel in cal culating machines and in combined calculating and recordingmachines, aside from those characteristics of the illustrated structurewhich identify it with typewriting machines. This novelty will bedefined inthe subjoined claims, but as the ultimate end of the'invention is the improvement of a combined typewriting land calculatingmachine, I have selected for the purposes'of 'this disclosure, anElliott-Fisher ty ewriter of la ty e popularly known vas theFis er, andexemp ified, for instance, in Patent No. 573,868 to R. J. Fisher. As thegeneral arrangement of the Fisher machine 'must -be understood, in orderto 'properly comlprehendthe present im rovements, a genera descriptlonthereof wil be first in order.

The Fisher typewriter. This machine is of the fla't platen type andincludes a travelin carriage, movable both longitudinally andtransversely of the l laten, and carrying printin mechanism, w ichincludes both'letter an numeral types and operating keys therefor.

The machine framel 1 is mounted to travel longitudinally-of` astationary flat laten 1l the writing surface of which is in lcated inFig. 2. The frame 1 is provided with front andrearca'rriage guides 2 and3 which slidably support a carriage 4 movable transversely of the-platen and supporting the printing mechanlsm. The upper portion of thecarriage 4 is in the form of a casing 5,A numeral a'nd letter ke s 6and7, having stems 8 connected at their ower ends to key levers 9 fulcrumedIOO los

IIO

` ment wheell', see Figs. 2 and 3.

Within the carriage casing and connected in turn, through draw wires 10,with downwardly swinging type bars 11 carried by a type ring 12 pendentfrom the carriage casing, as shown in Fi 2. The carriage 4 is moved tothe right y a carriage propelling mechanism including nected at theirinner ends to the carriage and at their outer ends to spring drums 13ELmounted on the machine frame 1. The steps by-ste advance of the carriagein the direction o letter spacing, to-wit, to the right, icontrolled bymechanism which includes in its organizatlon a pair of racks 14 rigidlylassociated withthe carriage guides 2 and 3 and meshing with carriagepinions 15 ixed to a feed spindle 16 extending transversely of thecarriage (see Fig. 2) and carrying the escaperihis escapement wheel isin the form of a ratchet and constitutes the rack element of anescapement by the-operation of which the stepby-step advance of thecarriage, under the impulse of the' carriage dgropelling mechanism,'ispermitted. j in ad -'tion to the escape- 'ment wheel 17, the escapementincludes holding and spacing dogs 18 and 19 disposed for alternateengagement with the teeth of the wheel 17 Normally, the holding dogengages the ratchet wheel and holds the same, thus preventing theforward movement of the carriage. When, however, the dogs are swung,-the holding dog moves out of engagement with the wheel, but before thedisengagement is effected, the spacing dog moves into engagement.. Suchmovement of the parts is effected by'the depression of-a key'to print.When the key4 is released, however, the movement of the dogs isreversed, and, while the spacing 'dog is moving out of engagement withthe wheel, and before the holding dog moves into engagement therewith,the wheel is permitted to rotate an almost ina preciable distance sothat the dog, instead ci) moving back into engagement with the flat faceof the tooth before engaged by it, will engagethe next succeeding toothwhen the spacing dog has moved back suilii ciently to release the wheeland thus ermit the partial rotation thereof and the adjvance o' thecarriage `the distance of one letter space.

The operating mechanism between the keys and the escapement includes anarm 20 extending from the spacing dog and connected by a link 21 to anarm 22 projecting from a rock shaft 23 extending longitudinally of thecarriage adjacent to its rear wall, see Figs. 2 and 4. This rock shaftis vibrated by key yokes 24 mounted to swing within the casing andoperated by stem being e uipped with a pin 25 arranged to engage answing a yoke 24 just as the key reaches the limit of its downwardmovement. It will thus be apparent that the complete the keys, each. key

carriage tapes 13 contion `with the column stops,

depression of akey will eiect't'he swinging of a yoke 24 to rock theshaft 23 and thus shift the escapement do s, the release of the keyserving to ermit t e dogs to swing back to their initia ositions'for thepurpose of'permitting the ed ofthe carriage.

The tabalating mechanism o1' denominational selective means. As theyFisher machine is arranged to print'upon a work element supported in aflat, spread-out'condition upon the space sca e over whic the carriageindicator or pointer moves in a manner well understood. rllhe bar 25 isprovided with a longitudinal series or" pin openings 27 correspondinginposition to the graduations `on the scale and designed for the receptionof pins, the up er, ends of which project above the baren constitutecolumn stops 28 varying in number 'according to the number 4ofcolumnslto be printed on the sheet.

The carriage is equipped at its right hand endv with two tabulatorcatches, to-wit, a variable or denominational catch 29 and a single unitcatch 30 designed to be operated by catch keys31 and 32. These catchesare normally removed from interfering rela.- but by the depression ofits key, either catch may be moved to a position which will cause it,when moving with the carriage, to traverse a path obstructed by acolumnstop. -The column stop for a given column is ordinarily so 1ocated thatwhen the carriage is arrested by the use of the single unit catch it.will be in position to print in the units order of the column. Thevariable or denominational catch, however, is, as will be seen, byreference more particularly to Fig. 3, in theform of a plunger having aseries of stepped Shoulders each of which is separated from the next thedistance of one letter space. Therefore, b projecting this catch more orless, any one oiits several shoulders may be positioned to engage thecolumn stop and thus arrest the carriage at any denominational distancetherefrom, that is to say, with the-printing point of the carriageopposite any desired order of the column at the left of the decimalpoint or space.

To facilitate the positioning of the denominational catch, a scale plate33 is'associated with the key 31 and 1s provided with platen, it is welladaptedfor tabulation, and it therefore embraces in its IOO IOS

ISO

4 ece graduations, 31 and 32 are operatively relatedto the release lever34, see Fig. 4, which serves, when j vibrated, to swing both dogs of theescapeso as to release the carriage and thus permit its free advanceuntil arrested by the tabulating mechanism. Since the tabulatingmechanism and its connections have only been indicated in a generalwayin the accompanying drawings, reference. is made for a furtherdetailed 666,762 to (lharles F. Laganke and 723,937 to John A. Smith. .y

rihe foregoing is a sufficient description oi the general organizationof the -typewriting machine and of those features thereof which are moreor less intimately related to present invention, and it is next in orderto explain the relation of the computing device to said machine.

The general relation cg( the computing device and the typewritingmachine. Secured to the easing 5 of the typewriter carriage 4 andextending rearwardly therefrom, is a supporting bracket 35 to which isrigidly iixed what is variously known as a register, totalizer, orcomputing device 36, The computing device 36 may be of any suitableconstruction, but that shown is substantially what is known as aliagankeand Smith register exemplified in Patent No. 825,469. lt includes acasing containing computing and registering mechanism, including, as isusual in this class of devices, a series of digit denominationalImembers, carriers or number wheels a, b, c, d, @,j', g, h and fi,having the denominational value of, and designed to register hundredths,tenths, units, tens, hundreds, thousands, ten-thousands,hundredthousands, and millions, the tenths wheel be-4 ing of doublewidth to accommodate the decimal space. Flach of these wheels isprovided upon its periphery with the digits 0 to 9 inclusive, preferablydisplayed upon the end faces of the peripheral teeth, one digit of eachwheel being observable through a sight opening extending across theupper front corner or the casing and preferably protected by amagnifying sight glass. Each carrier or wheel is arranged to makenine-tenths of a complete revelution independently of the other wheels,to present its digits successively before the sight glass, and duringits last increment of movement engages the adjacent wheel to the left,to-wit, the wheel of next ljgher denomination, and moves it a singleincrement or step, after which the wheel Jfirst named may again rotateindependently for nine-tenths of a complete rotation before againadvancing' the adjacent wheel to the left a single step. Since thewheels of the entire' series are related to one another in the mannerstated, it follows that mechanical computations in addition may be asshown. Both'of, the keys? ment out of engagement with the wheel 17 jdisclosure to Patentsj the ,sie

effected by moving the wheels, correspondingin order or denomination tothe order or denomination of the digits composing the numbers to beadded, a number of increments digits. 234,l the wheels of the computingdevicebeing set or clear, that is to say, the ciphers of all the wheelsbeing disposed opposite the sight glassI the wheel of the third order ordenomination, to-wit, the hundreds wheel e will be rotated fourincrements (it is immaterial whether this movement be intermittento`r-jco-ntinuousi preseiitingjthe digit .4 :oppesite ,the .sight-glassthe tiens:wheei` of the s'econdIforder or tated three increments and theunits wheel c of the first order two increments or steps. The numeralsobservable through the sight glass will now read 432 corresponding tothe rst number. The second number 234 will now be added b y' impartingorder wheel e two additional increments oi movement, to the second wheeld three increments and to the iirst order wheel c four increments, thuscausing the numerals presented before the sightglass to read 666, thesuius of the two numbers, it being observed that in the foregoingoperation each of these three wheels has been moved six increments andthat each wheel registers the number of increments it has moved. Sincethe numerical value of each order or denomination is 10, that is to say,ten times the value of the next lower order or denomination, and sinceeach wheel during its last increment of movement will, as heretoforeexplained, impart a single increment of movement to the next adjacentwheel to the left, it follows that when the number registered reachesthe limit of the numerical value of a given order the rotation of theadjacent wheel to the ieft will effect the registration of a digit oft-he next higher order or denomination. Thus, assuming the first orderor digit wheel c to be given nine increments of movement causing thepresentation of the digit 9 opposite the sight glass, the next or tenthincrement of movement will present the O7 on said wheel before the sightopening and by the automatic engagement of the wheel c with the wheel dof the next higher or second order, the latter 'will be moved a singleincrement to present the digit l of the second order before the glass,the presentation of the two digits 0 and l in the first and secondorders effecting the registratidn of the number l0. it follows, from thedescribed relation of the digit carriers or number wheels, that anytotal within the capacity of the register may be arrived a't bysuccessive operations of a single wheel, or by the operation of aplurality of wheels. Thus units may be added displays 9,999,999.99,since until the register each number wheel or digit carrier, when 1tcorresponding-tothe unitary values of such Thus, 1f it is desired to add432 anddenomination will be'ro- 1 to the third,

IOO

IIO

ISO

yparting directly to t reaches the limit of its capacity, will transferthe result of its computation to the wheel of next higher order ordenomination, and similarly, a summation ma be effected by imfie variousnumber wheels corresponding in denomination to the denominations of thenumbers to be added, a number of increments corresponding to the unitaryvalue of the digit'or digits embraced by those numbers. j

It should be understood, however, that the members, which have beenvariously designated as digit carriers or number Wheels, need notdirectly carry the digits or have the form of wheels, since, in thebroader aspect of the invention, it is sufficient that they occupydifferent denominational positions and that they cause the display ofdlfferent digits and are concerned in the computation to be effected.

T he master wheel and the operating connections therefor. The numberwheels or digit carriers of the computing device are designed to beoperated by a master Wheel 37, which, as the printing point ofq thetypewriting machine advances from order to order of the column, isautomatically advanced into engagement with the number Wheels ofcorresponding order or denomination. Thus, whenever the printing pointof the machine is opposite the units order, for instance, of the column,the master wheel will be in engagement with the units Wheel e and willadvance in either direction across the computing de- -vice as theprinting point ofthe carriage advances in either direction across the coumn. This master Wheel is the primary element of the actuating'mechanismfor the computing device and isdesignedto rotate the number wheels ordigit carriers of 'appropriate denominations 1n proportion to thenumerical values of the digits embraced by the computation. wheelincludes Y' plurality of The means for rotating the master the numeralkeys of the typewriter, although it is obvious that, viewing theinvention as a calculating machine, it is immaterial whether the keysperform any function other than the actuation of the master Wheel. Themaster wheel 37 is mounted on a rnasv ter wheel shaft 38 located at therear-of the carriage and supported above the same b a brackets 39 whichpreferably ave a common base late 40 secured in any suitable manner to te top of the carriage casing 5. The master wheel shaft 38 is designed torotate and is formed with a squared portion 41 extending through acorrespondmg opening in the master wheel 37 so that, while said wheel iscompelled to rotate with the shaft, along the shaft to successivelyengage the various number wheels or digit carriers of thecomputing'd-evice.

Rotatably mounted on the shaft 38, pref-y `each loose arm 58, the shaft56 1t may be moved independently.

ratchet wheel 43 engage the beak of a springurged pawl 44 mounted onlone side face of a disk 45 fixed tojthe master wheel shaft 38 andhaving associated therewith a ratchet wheel 46. The teeth of the ratchetwheel 46 are reversely disposed with respect to the eeth of the ratchetwheel '43 and are engaged by a check pawl 47, preferably mounted on oneof the brackets 39, as shown in Fi s. 2 and 4, and urged to its engagingpositioniby a spring 48. Thus, when the pinion 42 is rotated in onedirection the shaft 38 of the master wheel will move therewith, but uponthe retraction 0r reverse rotation ofthe pinion 42, the master wheelshaft and the master wheel will be held against reverse movement by thecheck pawl 47. The operating connection between the numeral keys 6 andthe inion 42 includes an actuating lever 49, see

ig. 2, mounted on a short shaft 50 carried b supports 51 upstanding fromthe base p ate 40. This lever 49 is fulcrumed adjacent to its front endand is formed at its opposite extremities with toothed segments, theformer meshing with the pinion 42 and the latter with the toothedsegment or rack 54 carried at the extremity of a rack arm 55 projectingthrou h the top of the carriage caslng from a roc shaft 56 mounted 1nbearing brackets 57 pendent from the top or cover of the carriagecasing, see Figs. 2 and 3. This rock shaft 56 constitutes a motiontransmitting element mounted Within -the carriage casing `and common toall the numeral keys. That 1s to say, the numeral keys of the typewriterare each designed to imlpart a different degree of movement to the siaft 56 for the purpose of transmitting, through the latter and itsintermediate connections, such movement to the master wheel as willserve to advance a digit carrier or number wheel a number of incrementscorresponding to the uni-` tary value of the key.

The operating connections between the keys and the rock shaft comprehenda series of loose arms 58 extending laterally from the shaft 56 andhaving angular ends 59 disposed to be engaged by the pins or projections25 on the key stems, s ee Fig. 2. Adjacent to is equipped with acomparatively short, fixed arm 60 provided with a lateral extension 61disposed under the adjacent loose arm 58 so that, when the latter isswung down by the depression of a key, it will engage the fixed arm andthus swing the latter and effect a partial rotation of the shaft 56..Normally all of the key stern pins 25 are in engagement with the top ofthe carriage casing, as shown in Fig. 3, therebyv serving to limit theupward movement". of the keys. Since the IOO IlO

movement of all of the keys are uniform in extent and since the keystems are all normally disposed in the same horizontal plane, provisionis Iliade for the differential movement of the shaft 56 incorrespondence with the values of the several digits represented by thenumeral keys. Such provision comprehends the graduated arrangement ofthearms 58 and `60. Thus, the arm 58 at the extreme left hand end of theseries will be normally disposed at a sufficient distance below the stempin of the 1 ke to permit independent movement of the rey duringeight-ninths of its stroke, after which the pin contacts with theangular end 59V of the arm 60 to rock the shaft 56. This movement of therock shaft is su'l'licient to effect one increment of movement of themaster wheel andi a similar movementof the digit carrier in mesh.therewith. The several arms 58 to the right of' the one whose operationhas just been described are located progressively in higher planes sothat the movement of said arms, and hence the movement of the rock shaftand the operative connections between it and the master Wheel, will beincreased in accordance with the increase in numerical value of thekeys. Retractile movement of the shaft 56 to its normal posit-ion iseffected by a retracting spring 62, see Fig. 8.

rl`he described mechanism for transmitting motion from the keys to thepinion 42 is not original with me. If desired, any other aprovedmechanism for transmitting motion to the master wheel shaft from thekeys may be employed in lieu of that shown.

.in order to simplify this disclosure as much as possible, l haveomitted the mechanisms usually employed for preventing over-running ofthe master wheel and for holding the master wheel operating connectionsagainst .retraction when a key rises from an incom- .plete stroke.

The master wheel advancing mechanism. It is now in order to describewhat is believed to be a radical depart-ure in machines of thischaracter, to-wit, the advance of a master wheel or actuator mounted ona moving carriage, into co-operative relation with the successivedenominational members, number wheels or digit carriers of a computingdevice also mountedon and movable with the carriage. L

vit has been stated that the master wheel 37 is slidably mounted on thesquared portion 41 of the master wheel shaft 38, and it may now bestated that the advance of the master wheel along the shaft to presentit to successive number wheels is designed to be effected by themovement of the carriage, the motive power for such advance of tiemaster wheel being thus supplied by the carriage propelling mechanism.The grooved hub 63 of the master wheel 37 is engaged by 58 and swings itand the adjacent arm scenes a spanner or yoke 64 carried at the rear extremity of the horizontally disposed'end 65 of a vertical master wheeladvancing arm 66 extending through and movable laterally within alongitudinal slot 67 in the top ofthe carriage casing 5. At a pointintermediate of its ends the arm 66 is equipped with a dove-tailed slide67 a engaging a correspondingly formed groove or way 68 in a guide 69,preferably secured to.. and projectingl inwardly from the rear wall ofthe casing 5 to brace and guide the arm 66y during such movement of thelatter as is necessar to effect the advance of the master wheel ack andforth across the computing device.

Extending horizontally from the master wheel'advancing arm 66 is whatmay be termed the master wheel rack 7 0 formed at its upper edge with alongitudinal enlargement 71, slidably engaging a correspondingly formedway in a gui e 72 which, like the guide 69, is preferably secured to theback wall of the carriage casing and projects inwardly therefrom, asshown in Figs. 2 and 1. The master wheel rack meshes, as shown in Fig.4', with. the upper side of a master wheel advancing inion 7 3 looselymounted on the carriage fiied spindle 16 and corresponding in diameterwith the feed pinions 15 which latter, as heretofore explained, arefixed to the spindle and rotate in mesh with the 'relatively fixed racks14 as the .carriage advances. The master wheel advancing pinion 73 isdesigned to be intermittently connected with the spindle 16 by amechanism to be hereinafter described, and whenso connected, will rotatewith the s ind'le to cause the advance of the rack 70 an ,the consequentadvance of the master wheel a corresponding distance.

Attention is now particularly directed to the fact that both thecomputing device/and the master wheel advance with the carriage' andthat the master wheel must, therefore, advance more rapidly than thecarriage and the computing device fixed thereto, as it is obvious thatthe master wheel would other# Wise remain in engagement with a givennumber wheel instead of advancing to the next number wheel during theadvance of the carriage from one order of a column to the next.

As-will be evident, the axis of the feed pinions bears a fixed relationto the carriage, and

as these' pinions travel along the fixed racks 14, it is obvious' thatadvance the distance of the bodily travel'of the feedv pinions 15. Themaster Wheel advancing rack 70, however, engages the periphery of thepinion 73 which, as before stated, corresponds in size with the pinions15, 'and like said pinions, is fixed to the spindie 16. Therefore, whilethe carriage' advances the distance of one letter space, determined bythe bodily movement of the pinthe carriage will only .l

ione

IZO

ions, the rack advances two letter spaces, determined by the peripheralmovement of the pinions. It .will thus be seen that, as the computingdevice-moves the distance of one step or letter space during the advanceof the carriage from one' order of a column to the next, the masterwheel will advance the distance of two steps. Thus the relative movementof the master wheel with respect to the computing device will be onestep, which will cause the advance of the master wheel from one digitcarrier to the next, in order that-the denomination of the carrierengaged will always correspond with the order or denomination of thecolumn, opposite. which the printing point of the machine'is located.

t will appear from what has been said that the lpresent inventionembodies broadly a j carrlage supporting both the computingr device andits operatm connections and movable to change the enominational relationthereof. When considered in this broad aspect, it is immaterial whetherthe change in j denominational relation is effected by a master actuatorpresented to successive denominational members or. whether some entirelydifferent character of mechanism is employed `for determining theparticular member to be `operated in accordance with the positionoccupied by the carriage. 4It is sufficient that the position of thecarriage/determines the.

particular denominational member to be operated and that the members andtheir operatin means are movable with the carriage in the irection ofdenominational spacin T he co'lumaselective means whereby tie mal chinemay be set to totalfize a column or colamas located at any desired pointor points on the work sheet. As heretofore stated, one of the primaryobjects of the invention is to provide means located accessibly at Ithefront of v the machine and arranged to be set simultaneously with thesetting of the column stops of the tabulator mechanism, to determine theperiods in the relative movement of the platen and printing mechanism,during which the computing device will be operated. In furtherance ofDthis end, a clutch 74, comprising clutch members 74*l and 74h, ismounted on the feed spindle 16 and is designed to con' nect the masterwheel advancin pinion -73 with the spindle when the clutc members arethrown into engagement. Themember 74b is fixed to the pinion 73 and isloosely revoluble therewith on the spindle. member 74, on the contrary,1s splined on the s indle so as torotate therewith although capa le ofmovement into and out of en agement with the member 74". member 74a isdesi ned to be operated by a clutch rod 75, pre erably disposed parallelwith the spindle 16, as shown in Fig. 8, and guided insuitable .bearings76 mounted on the'bott'o'm of the carriage casing.. Normally the clutchmembers are retained out of 'shown in Fig. 3.

The

The c utch front end of the clutch rod .75 bears againstr the'free outerend of what may be termed the clutch lever, 79, disposed longitudinallyof the casing, and fulcrumed at its opposite eX- tremity in a bracket80, preferably located at the extreme right hand end of the casing, asProjecting through the front wall of the carriage casing adjacent to theright hand end thereof is a reciprocatory trigger 8l guided in asuitable bearing 82 and having its rear end engaging the lever 79.

The trigger 81 is designed to be tripped or urged inward by one or moretrips or column lselective devicesSS mounted on the column stop bar 26,as shown in Fig. 3, and preferably in the form of beveled-ended blocksapproximately coincident in length with the width of a column or addingfield. When so tripped, the inward movement of the trigger from itsnormal plane swings the lever 79, which in turn urges the clutch rod 75longitudinally against the resistance of the spring 77 and thus operatesthe clutch 74 to connect the master wheel advancing pinion 73 with thespindle 16. During the subse uent advance of the carriage the rotation othe pinion 73 withl the spindle will cause the master wheel to beadvanced across the computing device 36 1n the manner heretoforedescribed, because the trigger 81 will'be held by the trip againstoutward movement during' the ladvance of the printin point of thecarriage across the column t0 Elie totalized. As soon, however, as thetrigger reaches the -end of the trip, the spring 77 will return thetrigger to its normal plane and operate the clutch 74 to disconnnectthe' master wheel advancing mechanism from the carriage feed spindle solthat the numeral keys may be depressed to print outside of thev columnbeing totalized without effecting the actuation of the computing device.Similarly, the retraction of the carriage will cause the trigger to betripped by engagement with the trip and thus the master wheel will bemoved across the computing device in a reverse direction, that is tosay, from right to left, as the printing point lof the machine movesback across the column.

Therefore, whenevertheprinting point of the machine is located oppositethe adding field orv column being totalized, no matter whether thecarriage is moving to theright or left or 4whether its movement is freeor step-by-step,

the master wheel will always be in engagement with the digit carrier ofthat denomination appropriate to the location of the printin point ofthe machine.

n the present embodiment ofthe invention it is` contemplated to leavethe master wheel one step beyond either end of the series of digitcarriers when the printing point IOO IIO

ITS

